The famous double helix model of DNA was proposed by Watson and Crick in ____ and they shared Nobel Prize for Physiology or Medicine in ________ for their effort.

1.1951, 19712.1943, 1963
3.1953, 19624.1969, 1972

Subtopic:  Introduction to Genetics: 1 | Introduction to Genetics: 2 |
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A plant, on repeated self-pollination, preserves the trait expressed for many generations. Such a plant is said to be:

1. Panmictic 2. Homologous
3. Apomictic 4. Pure line
Subtopic:  Introduction to Genetics: 1 | Introduction to Genetics: 2 |
 87%
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Which of the following is a recessive trait for a character chosen by Mendel in garden pea?

1.Violet flower colour2.Yellow pod colour
3.Axial flower position4.Tall stem height

Subtopic:  Introduction to Genetics: 1 | Introduction to Genetics: 2 |
 85%
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The F1 progeny in monohybrid crosses by Mendel resembled:

1. The parent exhibiting the dominant trait completely
2. The parent exhibiting recessive trait comp
3. The parent exhibiting the dominant trait partly
4. The parent exhibiting recessive traits partly
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
 85%
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Genes that code for a pair of contrasting traits or slightly different forms of the same gene are known as:

1. Alleles 2. Loci
3. Cistrons 4. Introns
Subtopic:  Monohybrid Cross: Further Understanding |
 95%
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In true breeding, the allelic pair of genes are:

1. Homologous 2. Linked
3. Stable 4. Homozygous
Subtopic:  Monohybrid Cross: 1 |
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A graphical representation to calculate the probability of all possible genotypes of offspring in a genetic cross is called as:

1.Forked line diagram2.Punnett square
3.Pedigree chart4.Idiogram

Subtopic:  Monohybrid Cross: 1 |
 93%
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A test cross is done to find out:

1. Fitness of an organism
2. Genotype of a plant expressing dominant phenotype
3. The suitable parents for a Mendelian Cross
4. The hidden genotypic ratio of F2 phenotypes
Subtopic:  Monohybrid Cross: 1 | Monohybrid Cross: Further Understanding |
 81%
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What is the ratio of a typical monohybrid test cross?

1. 2 : 1 2. 3 : 1
3. 1: 2 : 1 4. 1 : 1
Subtopic:  Monohybrid Cross: Further Understanding |
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The expression of only one of the parental characters in a monohybrid cross in the F1, the expression of both in the Fand the proportion of 3:1 obtained at the F2 can be explained by:
1. Law of Dominance
2. Law of segregation
3. Law of Independent Assortment
4. Two-factor interaction

Subtopic:  Monohybrid Cross: 1 |
 63%
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